George Andrew Olah (born May 22, 1927 in Budapest, as Oláh György) is a Hungarian-born American chemist. For this research, Olah was awarded a Nobel Prize in Chemistry in 1994.

After the high school of Budapesti Piarista Gimnazium, he studied, then taught, at what is now Budapest University of Technology and Economics. Olah is currently a distinguished professor at the University of Southern California and the director of the Loker Hydrocarbon Research Institute. In 2005, Olah wrote an essay promoting the methanol economy.

The Olah family formed an endowment fund (the George A. Olah Endowment) which grants annual awards to outstanding chemists. The awards are selected and administered by the American Chemical Society.